Wow. Now just up a few steps. (They are on the left in the picture) Gets a little steeper here - so put your toes in the holes. A few more steps to go. Finally in sight, the Teahouse! Click here to Watch the Cliff Hanger PPS! Click here to Watch the Cliff Hanger PPS! Dhtml Menu Navigation by Vista-Buttons.com v5.7. Natural beauty of 100 wonderful photographs of birds. Artforms of Nature. Published on 18 July 2009 Haekel's artistic interpretation of the biological forms he studied have a clarity of symmetry and detail that has been a source of inspiration for many artists and engineers over the years.

In 2009, a team of British cavers investigated a recently uncovered cave in a remote Vietnamese jungle. The Son Doong cave is enormous; can it be larger than the current world-record holder? The explorers traveled for miles through the cave before hitting a 46-foot-high wall. Now, follow the team as they return to Son Doong to finish exploring the cave and climb the wall. Will Son Doong prove to be the worlds biggest cave? The special airs Monday, December 20th at 10PM EST. A half-mile block of 40-story buildings could fit inside this lit stretch of Hang Son Doong, which may be the world's biggest subterranean passage. Like a castle on a knoll, a rock formation shines beneath a skylight in Hang Son Doong. Son Trach, Bo Trach District, Vietnam.
There's something fishy about this dolphin...
By Mail Foreign Service Updated: 15:03 GMT, 5 April 2011 Enormous shoal of sardines adopts remarkable disguise These cunning sardines have used some imagination to frighten off potential predators.

Grouping together for safety out of instinct, they have adopted the shape of what might pass for a dolphin 80 feet below the surface in Cebu in the Philippines. The shoal was spotted by photographer Steve De Neef, 29, who captured the remarkable moment. Shoal of sardines adopt a cunning disguise as they swim in the formation of a dolphin He said: 'The shoal starts at the surface and goes down to about 30 metres. 'There are sardines as far as you can see and there must be thousands of them. 'Getting the picture of the dolphin shape was just about being in the right spot at the right time. 'As soon as I took it I noticed how organised the school looked. 'Fish are known to stick together like this for protection, the shoaling makes it less likely that each individual will be eaten.

Often though, whether from disaster or lack of funding, celebrated technology becomes obsolete and is abandoned. Decay sets in to rust the disused places and objects which were once invaluable to us. Here are defunct and abandoned technologies such as power plants, amusement parks, factories, ships, aircraft, oil rigs, and military installations. Abandoned Balaklava Submarine Base (image credits: English Russia) Until the collapse of the Soviet Union in 1991, Balaklava was a secretive town that was home to a highly secretive nuclear submarine base.